The present specification relates to a composition for external application to a skin, comprising: a solute which is a benzoic acid amide compound, an isomer thereof, a pharmaceutically acceptable salt thereof, a hydrate thereof or a solvate thereof； a first solubilizer which is a glycyrrhizic acid derivative； and a second solubilizer which is a glyceryl ether or polyethylene glycol/polypropylene glycol copolymer, and provides a composition for external application to a skin with improved solubility.本說明書係關於用於外部施用至皮膚之組成物，該組成物包含：溶質，該溶質為苯甲醯胺化合物、其異構體、其醫藥學上可接受之鹽、其水合物或其溶劑化物；作為甘草酸衍生物之第一助溶劑；及作為甘油基醚或聚乙二醇/聚丙二醇共聚物之第二助溶劑，並且提供具有經改良之溶解性的用於外部施用至皮膚之組成物。
